Oil Industry Resources in Western Pennsylvania MPS

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Bradford Downtown Historic District (McKean County, Pennsylvania)
Butler Historic District (Butler County, Pennsylvania)
Emlenton Historic District (Venango County, Pennsylvania)
Oil City Downtown Commercial Historic District (Venango County, Pennsylvania)
Oil City North Side Historic District (Venango County, Pennsylvania)
Oil City South Side Historic District (Venango County, Pennsylvania)
Warren Historic District (Warren County, Pennsylvania)